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Home >   How To >   How to Repair AC Parts >   Sanden AC Compressor: How to Determine Your Sanden Numbers

Sanden AC Compressor: How to Determine Your Sanden Numbers


An AC Compressor is the heart of an AC system that induces a high pressure in the refrigerant and sends it to the AC condenser. It is basically a pump driven by the engine. Sanden AC compressor units are some of the most reliable AC compressors on the market and understanding the way to identify your AC compressor is vital.


How to determine your Sanden AC compressor number and types?




1. Model Conversions


TYPE R12 R134a
5 Cylinder SD-505 SD7B10/SD5H09
SD-507 SD5H11
SD-508 SD5H14
SD-510 SD7H15HD and SD5H14HD
7 Cylinder SDB-706 SD7B10
SD-708 SD7H13
SD-709 SD7H15
SDB-709 SD7B15


R-12 Sanden AC compressors use a specific numbering system: This kind of AC compressors use "SD" to signify the Sanden name. Then, the units have a 3 digit code such as 709 for the R-12 Sanden AC compressors.


The Sanden compressors that are designated for the R-134 freon use a slightly different code than the R-12 Sanden compressors. The code is easy to determine and follow a code like SD7H15HD, which can be broken down into its parts. The SD stands for Sanden, the maker of this air conditioning compressor. The 7 is the number of cylinders in the Sanden compressor, H stands for the port location (H: if it is on the head and B: if it is on the block), the 15 is the displacement in cubic centimeters. The HD stands for heavy duty and there can also be SHD for sealed heavy duty clutch.


how to determine your sanden ac compressor numbers    


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